Made from silicone, our water bottle caps stopper is and . It provides a reliable seal that prevents leaks and spills, making it ideal for both indoor and outdoor use. The stopper is also easy to clean, ensuring that it remains clean and ready for use at all times. Features -Color:White -Material:Silicone -Size:2.50X2.50X0.70cm/0.98X0.98X0.28in -Versatile in use, this stopper is nice for a variety of containers, including water bottles and wide-mouth cups. -Designed for convenience, it is to install, making it simple to replace whenever necessary. -Belly bottle cap spill proof stopper is mainly designed to prevent water spilling, prolong the lifespan. - Features the simple appearance, very convenient and easy to install. Fine workmanship, has details. -With the nice sealing performance, they can effectively prevent water leakage, convenient to replace. Package list: 2 cup anti-leak plugs